Gar-platform holder



R m NH M UR m u ML .P. ER A G a d 0 M 0 w No. 499,106. Patented June 6,1893.

, 3 J it w Iva/62722277: .Z'I'ZberZ M.Gurnee.

UNITED STATES PATENT OFFICE.

ELBERT M. GURNEE, OF WESTPORT, MISSOURI.

CAR-PLATFORM HOLDER.

SPECIFICATION forming part of Letters Patent No. 499,106, dated June 6,1893.

Application filed August 3, 1892. Serial No. 442,043. (No model.)

T0 at who it may concern.-

Be it known that I, ELBERT M. GURNEE, of Westport, in the county ofJackson and State of Missouri, have invented certain new and usefulImprovements in Passenger-Car-Platform Holders, of which the followingis a full, clear, and exact description, reference being had to theaccompanying drawings, which form a part of this specification.

My invention relates to certain new and useful improvementsin removableplatforms for passenger cars; and my invention consists in certainfeatures of novelty hereinafter described and pointed out in the claims.

Figure I, represents a plan view of my improved device showing theplatform removed. Fig. II, is a longitudinal vertical section taken online II, II, Fig. I, showing the platform in position. Fig. III, is aforeshortened view of the platform. Fig. IV, is an enlarged detailperspective showing the bracket, link and screw bolt, by which theplatform is secured to the frame. Fig. V, is a longitudinal, sectionalview of the bracket showing, the screw bolt and link in the positionthey assume when the platform is fastened to the frame.

Referring to the drawings: 1, represents the buffer, 2, the bufferframe, 3, the coupling, 4 the draw bar, 5, the buffer bar, and 6, aspring on the buifer bar.

7, represents the rear frame of the platform, which is connected withthe buffer frame 2 by a series of cross-frames, 8, 9.

10, represents the movable platform which fits in between the bufferframe 2, and the rear cross frame 7. The platform 10, which isremovable, is held in position by means of U shaped links 11, pivoted onthe underside of the platform 10, by means of cross pieces 12, suitablysecured to the platform. The links 11, are arranged with a horizontalportion 13, connecting the vertical portions of the same with eachother, said portions 13 forming a bearing by which the links are pivotedto the cross pieces 12, said links being placed at an angle with thecross pieces which form their support.

14, represents brackets secured to the cross frames 9, as shown at 15,by means of plates 16, which are an integral part of said brackets, Thebrackets 14, are provided with rounded elongated portions 17, havingcentral screw-threaded openings 18, in which engage screw-bolts 19,having squared ends 20, for screwing the same into the brackets. Thescrew-bolts 19, are provided with double threads 21, one of said threadsbeing of the same depth throughout in order to engage the female threadin the rounded portion 17, and the other thread being a diminishingthread, which terminates on the shank of the screwbolt, as shown at 22.

23, represents an opening in the rounded portion 17, of the bracket,said opening extending through said rounded portion at an angle, so asto permit the angling link 11, connected with the platform to extenddown through the same, there being a recess 24, in the bracketintowh'ich the lower end of the link extends.

In operation, when the platform has been placed in position on theplatform frame, the links 11, will extend into the angling openings 23,in the brackets 14. Then as the screw-bolt 19, is placed in position inthe rounded portion 17, of the brackets, and by suitable means screwedinward, as shown in I Fig. V, the thread of the screw-bolt will engagethe internal thread of the rounded portion, passing over the lower endof the U shaped link, which is placed at an angle with the threadedbolt, so that the diminishing thread on said bolt will engage with thelower end of said link; and as said bolt is forced forward to itsextreme limit, and the diminishing thread travels over said link,whereby the portion of the bolt engaging said link is constantlyincreasing in diameter, said link will be forced downward, drawing theplatform with it until the same has been forced into its proper positionin relation to the frame to which it is secured, the diminishing threadacting as a cam, to force the link and platform downward to their properpositions. I am thus enabled to place the platform in position and asreadily remove the same, causing a saving in time, as well as materialin comparison with the present method of securing and removing theplatform, it being obvious that it is necessary frequently to remove theplatform in order to repair and inspect the portions of the carsupported beneath the same. The heads of the bolts 19,

pass within recesses 25, when the bolts have been screwed into position,said recesses being closed by pivoted plates 26.

I claim as my invention- 1. The combination with the car-frame, of aremovable platform supported thereon, links secured to the platform, andmeans for connecting said links to the car-frame, substantially as setforth.

2. The combination with a removable platform; of links secured thereto,and screwbolts for engaging said links for holding the platform inposition; substantially as set forth.

3. The combination with a removable platform, of links pivoted thereto,and screwbolts engaging said links for holding the platform in position;substantially as described and for the purpose set forth.

4:. The combination with a removable platform, of links pivoted thereto,and extending at an angle with said platform, and screw bolts forengaging said links; substantially as set forth.

5.v The combination with a removable platform; of cross-strips connectedwith said platform; U shaped links pivoted to said crossstrips, andscrew bolts for engaging said links, substantially as set forth.

6. The combination with a removable platform of U shaped links; meansfor connecting said links to the platform, said links having upperhorizontal portions and lower rounded portions and screw-bolts forengaging said rounded portions for holding the framein position;substantially as set forth.

7. The combination with a removable platform; of brackets securedbeneath said platform having openings arranged with internal v threads;links connected with said platform, and screw-bolts engaging saidbrackets and set forth.

8. The combination of a removable platform; brackets having roundedportions secured beneath said platform, said brackets having internalthreaded portions; links pivoted to said platform; screw-bolts workingin said rounded portions, and engaging said links, certain threads onsaid bolts being made diminishing in form; substantially as describedand for the purpose set forth.

The combination of the car-frame, and a removable platform adapted torest on said frame, with a suitable link on one of said parts, and a camscrew-bolt on the other part and adapted to engage the link and hold theplatform in place, substantially as set forth.

10. The combination of a removable platform; links pivoted thereto;brackets secured beneath the platform and having rounded inv ternalscrew-threaded portions, said brackets having openings 23, into whichsaid links extend, and screw-bolts engaging in said brackets and links;substantially as described and for the purpose set forth.

11. The combination of a removable platform; links pivoted thereto;brackets 14, having rounded portions 17, with openings 23, recesses 24,located beneath said openings a portion of said bracket having aninternal screw thread, and a screw threaded bolt engaging in saidbracket; substantially as described and for the purpose set forth.

12. The combination with a removable platform; of links pivoted thereto,and screwbolts engaging said links, said screw-bolts being provided withdiminishing threads in order to force said platform firmly intoposition; substantially as and for the purpose set forth.

ELBERT M. GURNEE. Witnesses:

JAS. E. KNIGHT, FRANCIS A. LEACH.

